Fixing machine base for speed reducer

The utility model relates to the technical field of speed reducer installation, in particular to a fixing machine base for a speed reducer, which comprises a machine base and rotating blocks, the left end face and the right end face of the machine base are both rotatably connected with the rotating blocks, the outer sides of the rotating blocks are both fixedly connected with threaded shafts, and the other ends of the threaded shafts are both rotatably connected with the machine base. A movable block is spirally connected to the outer side of the threaded shaft, a gear is arranged on the other side of the movable block, the inner side of the gear is fixedly connected with the threaded shaft, a limiting frame is arranged on the outer side of the gear, a sliding rod is fixedly connected to the outer side of the limiting frame, and a guide block is slidably connected to the outer side of the sliding rod; according to the device, through the arrangement of the machine base, the rotating block, the threaded shaft,